Turn your lecture slides into short spoken cues for bedtime
Upload your own slides or notes, approve a few short cues about the key concepts, and let your phone play them quietly while you fall asleep.
Free beta for people aged 18 or older living in Australia. Android only, about 120 MB. The app isn't on the Play Store, so Android asks you to allow the install.
There is no iPhone version yet.
How it works
Add your notes
Upload lecture slides as a PDF (up to 150 pages and 25 MB) or a plain text file. Sleep Sage picks out the key concepts.
Approve your cues
Tick the concepts you want. Each one becomes a short spoken cue of one to three words. Nothing plays until you approve it and make its speech.
Set up the night
Choose how long and how loud, arm the session before bed, and your phone plays your cues quietly for the time you chose.
Coming soon on your computer
Soon you will be able to sign in here at sleepsage.app on your computer, upload your slides and approve cues while you study, then find them on your phone at night.
What Sleep Sage is not
Sleep Sage is an experiment. It is not a medical, health, sleep or therapy product. It does not claim to improve sleep, memory, learning or exam performance, and it does not detect when you are asleep.
Your privacy
Sleep Sage doesn't keep your PDF: it is deleted after the slides are read. The slide text is deleted when you tap Done with this deck, or after 7 days. Your text is sent to AI services to find concepts and make speech; the privacy notice says which kinds of service and for how long.
There are no ads and no analytics, and this website sets no cookies.
The beta
This is an open public test for people aged 18 or older living in Australia, with up to 50 places. It is free. It runs on free-tier services, may lose data, and ends on 31 December 2026. Keep your own copy of every file.
Questions
- Is there an iPhone version?
- Not yet. For now only Android phones can take part.
- Does it cost anything?
- No. The beta is free and there are no payments in the app.
- What happens to my slides?
- The PDF is deleted after it is read, usually within two hours. The slide text is deleted when you tap Done with this deck, or after 7 days. Your approved cues and their speech stay in your account until you delete them.
- How do I leave the beta?
- Delete your account in the app's Settings at any time. Hosted data is deleted within 24 hours.
Contact
Email hieu7337@gmail.com.